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FIELD  COLUMBIAN  MUSEUM. 

PUBLICATION  117. 
BOTANICAL  SERIES.  VOL.  II,   No.  4. 


STUDIES    IN   THE   GENUS 
CITHAREXYLUM 


BY 


JESSE  MORE  GREENMAN, 
Assistant  Curator,  Department  of  Botany. 


CHARLES  FREDERICK  MILLSPAUGH, 
Curator,   Department  of  Botany. 


CHICAGO,   U.  S.  A. 
January,   1907. 

THE  LIBRARY  OF  THE 

FEB1419 

UNIVERSITY  OF  ILLINOIS 


FIELD  COLUMBIAN  MUSEUM. 

PUBLICATION   117. 
BOTANICAL  SERIES.  VOL.  II,   No.  4. 


STUDIES    IN    THE   GENUS 
CITHAREXYLUM 


BY 


JESSE  MORE  GREENMAN, 
Assistant  Curator,  Department  of  Botany. 


CHARLES  FREDERICK  MILLSPAUGH, 
Curator,  Department  ofjBotany. 

THE  LIBRARY  OF  THF 


FEB141938 

UNIVERSITY  Of  II  . 


CHICAGO,  U.  S.  A. 

January,   1907. 


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Cop. 3 

STUDIES   IN  THE   GENUS   CITHAREXYLUM. 


BY    J.    M.    GREENMAN. 


The  present  paper  embodies  the  results  of  a  study  of  the  material 

4 representing  the  genus  Citharexylum  in  the  collections  of  John 
Donnell  Smith,  the  Gray  Herbarium,  and  the  herbarium  of  the  Field 
Museum  of  Natural  History.  It  is  intended  as  preliminary  to  a 
N  synoptical  revision  of  the  group,  which  the  writer  already  has  well 
under  way.  The  generic  limitations  are  those  of  Bentham  &  Hooker,  f. 
Genera  Plantarum,  ii,  1149,  and  of  Briquet  in  Engler  &  Prantl,  Die 
natiirlichen  Pflanzenfamilien,  iv.  Ab.  3a,  159;  and  the  Latin  form  of 
the  generic  name  is  that  adopted  by  Linnaeus  in  the  first  edition  of 
the  Species  Plantarum,  notwithstanding  the  earlier  use  of  the  Greek 
termination.  The  writer  desires  to  express  his  thanks  to  Mr.  John 
Donnell  Smith  for  the  loan  of  his  excellent  suite  of  specimens  of  this 
genus,  and  to  Prof.  B.  L.  Robinson  of  the  Gray  Herbarium,  where  the 
greater  part  of  this  work  was  done. 

Citharexylum  Bourgeauianum,  sp.  nov. 

Tree :  branches  somewhat  4-angled,  striate,  alternately  flattened 
at  the  nodes;  the  ultimate  branches  evenly  pubescent  with  short 
spreading  hairs:  leaves  opposite,  ovate  to  oblong-lanceolate,  including 
the  petiole  6  to  18  cm.  long,  1.5  to  6  cm.  broad,  usually  acuminate, 
acute  or  obtuse,  entire,  glabrous  above  except  for  a  slight  puberulence 
on  the  sunken  midrib,  velvety  pubescent  beneath,  narrowed  at 
the  base  into  a  canaliculate  i  to  2  cm.  long  petiole;  midrib  and  lateral 
nerves  rather  prominent  on  the  under  surface:  inflorescence  terminat- 
ing the  stem  and  branches  in  elongated  racemes,  occasionally  some- 
what paniculately  disposed,  2  dm.  or  less  in  length,  hirsutish  pubescent; 
bracts  subulate,  i  to  2  mm.  long,  equaling  or  slightly  exceeding  the 
stoutish  pedicels,  soon  recurved  and  more  or  less  persistent:  calyx 
somewhat  tubular  or  deeply  cup-shaped,  about  5  mm.  long,  crenately 
5-lobed,  hirtellous  on  the  outer  surface  and  slightly  puberulent  within: 
corolla  subsalverform,  white;  tube  equaling  '  or  barely  exceed- 
ing the  calyx,  pubescent  in  the  throat;  lobes  oblong,  3  mm.  long, 
pubescent  on  both  surfaces:  fruit  riot  seen.  —  MEXICO.  State  of  Vera 
Cruz:  region  of  Orizaba,  Bourgeau,  no.  2525  (hb.  Gray)  type;  Orizaba, 
Botteri,  nos.  880  (hb.  Gray),  1092  (hb.  Gray,  hb.  John  Donnell  Smith, 
and  hb.  Field  Mus.). 

185 


186  FIELD  COLUMBIAN  MUSEUM  —  BOTANY,   VOL.   2. 

Citharexylum  crassifolium,  sp.  nov. 

Stem  terete,  covered  with  a  grayish  bark;  ultimate  branchlets 
subtetragonal,  compressed  at  the  nodes,  striate,  pubescent:  leaves 
opposite,  petiolate,  oblong  to  oblong-lanceolate,  including  the  petiole 
5  to  13.5  cm.  long,  2  to  5  cm.  broad,  obtuse  or  retuse,  entire,  revo- 
lute-margined,  narrowed  at  the  base  into  the  petiole,  dull  green 
and  minutely  scabrellous  above,  conspicuously  reticulate-nerved  and 
pubescent  beneath;  petioles  0.5  to  i  cm.  long,  stout,  2  to  5  mm.  thick, 
canaliculate,  puberulent:  racemes  terminal  and  solitary  or  several  and 
paniculately  disposed,  short-hirsute;  bracts  minute,  triangular,  acute, 
about  equaling  the  pedicels:  flowers  in  anthesis  4  to  5  mm.  long: 
calyx  narrowly  campanulate,  2  to  2.5  mm.  long,  5-angled  in  cross  sec- 
tion, shallowly  sinuate,  5-denticulate,  externally  minutely  pubescent: 
corolla  tubular-funnelform,  about  twice  as  long  as  the  calyx;  tube 
externally  glabrous,  pubescent  within,  especially  in  the  throat;  lobes 
subequal,  ovate-rotund,  i  to  1.5  mm.  long  and  broad,  pubescent  on 
both  surfaces:  perfect  stamens  4,  the  fifth  reduced  to  a  minute  stami- 
nodium  :  ovary  and  style  glabrous :  mature  fruit  unknown. — C.  cinereum, 
Donnell  Smith,  Enum.  PI.  Guat.  ii.  60  (1891),  and  vi.  33  (1903),  not 
L. — GUATEMALA.  Department  of  Baha  Vera  Paz,  in  forests  of  Santa 
Rosa,  altitude  1520  rn.,  July,  1887,  H.-von  l^uerckheim,  no.  1308  (hb. 
John  Donnell  Smith).  This  species  has  been  confused  with  C.  cinereum, 
L. ,  from  which  it  is  readily  separated  on  leaf -character  alone.  The 
leaves  in  C.  crassifolium  are  thicker  or  more  leathery  in  texture,  dull 
green  and  not  conspicuously  reticulate-veined  above,  and  furthermore 
the  calyx  is  smaller  than  in  C.  cinereum ?  L. 

Citharexylum  Donnell-Smithii,  sp.  nov. 

Tree:  stem  covered  with  grayish  bark;  ultimate  branches  terete, 
compressed  at  the  nodes,  reddish-brown,  striate,  dotted  with  scattered 
lenticels:  leaves  opposite  or  rarely  subalternate,  petiolate,  lanceo- 
late to  lance-oblong,  rarely  ovate,  including  the  petiole  0.5  to  2.1  dm. 
long  (mostly  i  to  2  dm.),  2  to  5.5  cm.  broad,  usually  acuminate  and 
acute,  occasionally  obtuse,  entire,  slightly  if  at  all  revolute-margined, 
rather  gradually  narrowed  at  the  base  into  the  petiole,  green  above,  a 
little  paler  and  inconspicuously  punctate  beneath,  glabrous  on  both 
surfaces,  bearing  i  to  several  small  glands  at  the  junction  of  blade  and 
petiole  and  an  occasional  gland  on  the  under  side  of  the  lamina;  mid- 
rib and  lateral  nerves  rather  prominent  especially  on  the  under  side  of 
the  leaf ;  petioles  i  to  3  cm.  in  length:  inflorescence  terminal;  racemes 
0.5  to  3.5  dm.  in  length,  solitary  or  several  and  paniculately  disposed, 
glabrous;  bracts  minute,  subulate,  mostly  shorter  than  the  2  to  3  mm. 
long  pedicels:  flowers  numerous,  about  6  mm.  long  in  anthesis:  calyx 
tubular-campanulate,  approximately  3  mm.  long,  strongly  5-angled  in 
cross  section,  sinuately  5-dentate,  ciliolate,  otherwise  glabrous:  corolla 
about  twice  exceeding  the  calyx,  tubular-campanulate,  subequally 
5-lobed,  externally  glabrous,  pubescent  within;  lobes  oblong  about  2 
mm.  long,  rounded  at  the  apex,  pubescent  on  the  upper  or  inner 
surface,  glabrous  on  the  outer  or  lower  surface:  perfect  stamens  4, 
slightly  projecting  beyond  the  tube  of  the  corolla:  ovary  and  style 


JAN.,    1907.    THE  GENUS  CITHAREXYLUM  —  GREENMAN.  187 

glabrous:  fruit  drupaceous,  oblong-spherical,  6  to  7  mm.  long,  bluish 
or  purplish-black;  pyrenae  submeniscoidal,  5  to  6  mm.  long,  3  to  3.5 
mm.  broad,  smooth. — C.  caudatum,  Donnell  Smith,  Prim.  Fl.  Costari- 
censis  ii.  209  (1898)  in  part,  not  L.  C.  villosum,  Donnell  Smith,  Enum. 
PI.  Guat.  ji.  60  (1891),  not  Jacq. — GUATEMALA.  Pecaya,  Department 
of  Amatitlan,  altitude  16/5  m.,  March,  1890,  John  Donnell  Smith,  no. 
1879  (hb.  Gray,  and  hb.  John  Donnell  Smith)  type.  COSTA  RICA. 
Plantations  of  the  Caf<3  near  Aserri,  August,  1889,  Tonduz,  no.  1274 
(hb.  John  Donnell  Smith) ;  along  the  highway  en  route  to  San  Pedro, 
18  November,  1889,  Tonduz,  no.  1419  (hb.  John  Donnell  Smith); 
Volcano  of  Barba,  altitude  2000  m.,  10  January,  1890,  Tonduz,  no.  1741 
(hb.  John  Donnell  Smith);  road  to  Santa  Maria  de  Dota,  altitude 
1492  m.,  April,  1893,  Tonduz,  no.  7855  (hb.  John  Donnell  Smith); 
San  Jose,  altitude  1135  m.,  January,  1895,  Tonduz,  no.  9623  (hb.  John 
Donnell  Smith);  San  Pedro  del  Mojon,  altitude  noo  m.,  January, 
1895,  Pittier  6°  Tonduz,  no.  9624  (hb.  John  Donnell  Smith);  environs 
of  the  Hacienda  Belmira,  near  Santa  Maria  de  Dota,  altitude  1450  m., 
Tonduz,  no.  11,646  (hb.  John  Donnell  Smith). 

Citharexylum  Emrickianum,  sp.  nov. 

Branches  sharply  4-angled,  striate,  glabrous,  reddish-brown: 
leaves  opposite,  petiolate,  ovate,  6  to  12  cm.  long,  3.5  to  6  cm.  broad, 
obtuse  or  submucronate  at  the  apex,  entire,  abruptly  contracted  at 
the  base  and  slightly  decurrent  on  the  petiole,  bi-glandular  at  the 
junction  of  petiole  and  blade,  .glabrous  on  both  surfaces,  slightly  paler 
and  minutely  punctate  beneath;  petioles  i  to  3  cm.  long:  inflores- 
cence in  axillary  pedunculate  racemes,  8  to  16  cm.  in  length;  bracts 
minute,  subulate:  flowers  numerous,  5  to  6  mm.  long  during  anthesis: 
calyx  tubular-campanulate,  3  mm.  long,  5-denticulate,  5  angled  in 
cross  section,  externally  glabrous,  pubescent  within  and  ciliolate 
about  the  orifice:  corolla  about  twice  as  long  as  the  calyx,  pubescent 
in  the  throat,  otherwise  glabrous;  lobes  subrotund :  drupe  oblong- 
elliptic,  6  to  8  mm.  long;  pyrense  deeply  concave  on  the  ventral  side, 
dorsally  somewhat  obliquely  corrugated. — MEXICO.  State  of  Michoa- 
can:  Hacienda  Coahuayula,  February,  1901,  Dr.  G.  M.  Emrick,  no. 
179  (hb.  Field  Mus.). 

Citharexylum  hexangrilare,  sp.  nov. 

Stem  sharply  6-angled,  striate,  glabrous:  leaves  verticillate,  3  in 
a  whorl,  petiolate,  lanceolate  to  oblong-lanceolate,  including  the 
petiole  8  to  18  cm.  long,  2. 5  to  5.5  cm.  broad,  obtuse  or  acuminate 
and  submucronate-acute,  entire,  narrowed  at  the  base  into  a  petiole, 
pale  green  and  glabrous  on  both  surfaces,  bearing  i  or  2  glands  at  the 
junction  of  petiole  and  blade,  rather  strongly  reticulate-veined ;  mid- 
rib and  lateral  veins  rather  prominent;  petioles  i  to  1.5  cm.  in  length, 
glabrous:  inflorescence  terminating  the  stem  in  flabellate  panicles; 
the  individual  spicate  racemes  of  the  inflorescence  i  to  2  dm.  in 
length,  glabrous  or  inconspicuously  puberulent;  bracts  minute,  subu- 
late, equaling  or  slightly  exceeding  the  pedicels,  persistent:  flowers 
on  jointed  pedicels,  rather  crowded,  5  to  6  mm.  long  in  anthesis: 


i88  FIELD  COLUMBIAN   MUSEUM  —  BOTANY,   VOL.    2. 

calyx  tubular-campanulate,  about  3.5  mm.  long,  5-toothed,  5-nerved 
and  with  intermediate  smaller  subanastomosing  veins,  ciliolate,  other-- 
wise glabrous:  corolla  tubular-campanulate,  pubescent  on  both 
surfaces;  tube  slightly  exceeding  the  calyx;  lobes  somewhat  unequal, 
ovate-rotund  to  broadly  oblong,  2  to  3  mm.  long,  nearly  or  quite  as 
broad,  spreading  or  reflexed:  perfect  stamens  4,  the  fifth  reduced  to  a 
mere  staminodium,  included:  ovary  glabrous;  style  pubescent :  mature 
fruit  unknown.- — C.  reticulatum,  Donnell  Smith t  Enum.  PI.  Guat.  vi.  34 
(1903),  not  HBK. — GUATEMALA.  Cubilquitz,  Department  of  Alta 
Vera  Paz,  altitude  350  m.,  September,  1901,  H.  von  Tuerckheim,  no.  7765 
(hb.  John  Donnell  Smith,  and  hb  Gray).  This  number  was  dis- 
tributed in  the  exsiccatae  of  John  Donnell  Smith  under  the  name 
'•'•Citharexylum  reticulatum,  H.  B.  et  K. ,"  from  which  species,  however, 
the  one  here  described  differs  in  having  larger  leaves  disposed  in 
whorls  of  three,  and  a  paniculate  inflorescence  with  longer  individual 
racemes. 

Citharexylum  Kerberi,  sp.  nov. 

Stem  terete  to  subtetragonal,  covered  with  a  light  gray  or  whitish 
bark,  glabrous;  ultimate  branchlets  reddish  brown,  pubescent:  leaves 
opposite,  obovate  to  elliptic-lanceolate,  including  the  petiole  5  to  15  cm. 
long,  2  to  6  cm.  broad,  rounded  to  short-acuminate  and  acute  at  the 
apex,  narrowed  at  the  base  into  a  o.  5  to  i  cm.  long  petiole,  hispidulous 
above,  densely  pubescent  beneath,  usually  biglandular  at  the  junction 
of  blade  and  petiole;  midrib  and  lateral  nerves  somewhat  sunken  from 
the  upper  surface  and  rather  prominent  beneath:  inflorescence  ter- 
minating the  stem  and  branches  in  elongated  spicate  racemes  13  to  18 
cm.  in  length;  rhachis  hirsute-pubescent;  bracts  subulate,  equaling  or 
somewhat  exceeding  the  short  pedicels,  usually  persistent:  flowers 
scattered,  12  to  15  mm.  in  length:  calyx  tubular,  6  to  7  mm.  long, 
subulately  5-dentate,  pubescent  on  both  surfaces:  corolla  salver- 
shaped,  about  twice  exceeding  the  calyx,  puberulent  at  the  base  of  the 
lobes  in  the  throat  and  in  the  upper  part  of  the  tube,  otherwise 
glabrous;  tube  8  to  10  mm.  long;  lobes  obovrate  to  obovate-cuneate, 
3  to  4.5  mm.  long,  two-thirds  as  broad:  perfect  stamens  4,  included, 
the  fifth  stamen  much  reduced,  often  to  a  mere  staminodium:  ovary 
and  style  glabrous:  mature  fruit  not  seen.  —  MEXICO.  Without  defi- 
nite locality,  E.  Kerber,  no.  430  (hb.  John  Donnell  Smith)  This 
species  passes  under  the  native  name  of  "Aceitunillo." 

Citharexylum  macradenium,  sp.  nov. 

Shrub  or  small  tree?,  glabrous  throughout:  branches  4-angled, 
covered  with  a  light  gray  or  whitish  cortex;  ultimate  branchlets 
striate,  reddish  brown,  deciduously  atomiferous  glandular:  leaves 
opposite  or  rarely  subalternate,  lanceolate  to  elliptic-lanceolate,  7  to  15 
cm.  long,  2  to  3.5  cm.  broad,  acute,  entire,  narrowed  at  the  base  into 
a  i  to  2  cm.  long  petiole,  minutely  punctate,  dark  green  above,  paler 
beneath,  bearing  at  the  base  of  the  blade  at  its  junction  with  the 
petiole  commonly  2  large  elliptic-oblong  swollen  glands  especially 
prominent  on  the  upper  side  of  the  leaf;  lateral  nerves  arcuate,  6  to  9 


JAN.,    1907.     THE  GENUS  CITHAREXVLUM  —  GREENMAN.  189 

on  either  side  of  the  midrib:  inflorescence  terminating  the  stem 
and  branches  in  simple  or  somewhat  paniculately  disposed  racemes; 
bracts  minute,  subulate,  i  mm.  long,  about  equaling  the  pedicels: 
calyx  cupulate,  2.5  mm.  high,  subtruncate,  minutely  5-denticulate, 
5-angled  in  cross  section:  corolla  tubular-funnelform,  white:  tube  4 
mm.  long,  externally  essentially  glabrous,  pubescent  in  the  throat; 
lobes  oblong,  2  mm.  long,  puberulent  on  both  surfaces:  stamens 
included:  style  puberulent:  fruit  not  seen. — C.  caudatum,  Donnell 
Smith,  Enum.  PI.  Guat.  v.  70  (1899),  not  L. ,  and  Prim.  Fl.  Costari- 
censis  ii,  209  (1898)  in  part,  not  L. — COSTA  RICA.  Province  of  San 
Jose,  La  Palma,  altitude  1460  m.,  August,  1898,  Tonduz,  no.  7407  (hb. 
Gr.,hb.  John  Donnell  Smith,  and  hb.  Field  Mus.)  exsiccatae  J.  Don- 
nell Smith,  i.  e.,  no.  12,502  hb.  Nat.  Costa  Rica;  forets  du  Rancho 
Flores,  altitude  2043  m.,  22  February,  1890,  Pittier,  no.  2132  (hb. 
John  Donnell  Smith). 

t 
Citharexylum  punqatum,  sp.  nov. 

Shrub?:  stem  and  branches  terete,  covered  with  a  grayish  bark; 
ultimate  branchlets  subtetragonal,  cinereous-puberulent:  leaves  ellip- 
tic-oblong to  subobovate,  including  the  petiole  i  to  2  cm.  long,  5  to  12 
mm.  broad,  usually  short  acuminate  or  somewhat  pungent-tipped, 
entire  or  occasionally  bearing  i  or  2  teeth  on  either  margin,  glabrous 
on  both  surfaces,  conspicuously  impressed-punctate  above,  minutely 
punctate  under  a  lens  beneath,  narrowed  at  the  base  into  a  short 
petiole:  inflorescence  terminating  the  stem  and  branches  in  short  few- 
flowered  puberulent  racemes,  1.5  cm.  or  less  in  length;  bracts 
minute,  triangular,  acute,  shorter  than  the  stoutish  pedicels:  flowers 
2  to  6  in  each  raceme,  7  to  8  mm.  long  in  anthesis:  calyx  tubular- 
campanulate,  3  to  4  mm.  long,  sinuately  5-toothed,  5-angled  in  cross 
section,  ciliolate,  otherwise  glabrous:  corolla  subsalverform,  5  to  6 
mm.  long,  externally  glabrous,  pubescent  in  the  upper  part  of  the 
tube  and  in  the  throat;  lobes  oblong,  about  one-third  the  length  of 
the  tube:  stamens  5,  equal,  included;  filaments  adnate  to  the  corolla- 
tube:  ovary  and  style  glabrous;  mature  fruit  drupaceous,  slightly 
oblong,  10  to  12  mm.  long,  purplish-black  in  the  dried  state;  pyrenae 
oblong,  about  7  mm.  long,  deeply  concave  on  the  ventral  or  inner 
surface,  conspicuously  corrugated  or  somewhat  irregularly  furrowed 
longitudinally  over  the  dorsal  surface. — BOLIVIA.  Without  definite 
locality,  Bang,  no.  1917  (hb.  Gray,  hb.  John  Donnell  Smith,  and  hb. 
Field  Mus.),  distributed  as  ''''Citharexylum  ilicifolium  H.B.K. ,"  from 
which,  however,  it  differs  in  having  smaller  and  entirely  glabrous 
leaves  with  an  entire,  not  spinose-dentate,  margin.  The  striking 
impressed  punctation  of  the  leaves  of  C.  punctatum  serves  as  an 
excellent  diagnostic  character. 

Citharexylum  recurvatum,  sp.  nov. 

Stem  terete,  covered  with  a  gray  or  grayish-brown  bark ;  ulti- 
mate branches  terete,  compressed  at  the  nodes,  striate,  glabrous: 
leaves  opposite,  petiolate,  lanceolate-oblong  to  subovate,  including  the 
petiole  4  to  11.5  cm.  long,  1.5  103.5  cm-  broad,  obtuse  (rarely  emar- 


igo  FIELD  COLUMBIAN   MUSEUM  —  BOTANY,   VOL.    2. 

ginate)  to  acute,  entire,  revolute-margined,  narrowed  at  the  base  into 
the  petiole,  dark  green  above,  paler  and  minutely  punctate  beneath, 
glabrous  on  both  surfaces;  midrib  and  lateral  nerves  rather  prominent, 
especially  beneath;  glands  i  to  4  at  the  junction  of  blade  and  petiole, 
not  conspicuous;  petioles  0.5  to  2  cm.  long,  glabrous:  inflorescence 
terminating  the  stem  and  branches  in  simple  rarely  branched  glabrous 
racemes,  becoming  strongly  recurved  and  i  to  2  cm.  in  length;  pedi- 
cels persistent,  2  to  3  mm.  long,  jointed  above  the  middle,  equaling 
or  somewhat  exceeding  the  minute  subulate  bracts:  flowers  small: 
calyx  tubular-campanulate,  about  3  mm.  long,  shallowly  sinuate, 
minutely  5-denticulate,  glabrous:  corolla  subequally  5-lobed:  perfect 
stamens  4,  included:  ovary  and  style  glabrous:  mature  fruit  an  oblong 
drupe,  5  to  7  mm.  in  length,  bluish-black;  pyrenae  elliptic-oblong,  4 
to  5  mm.  long,  3  to  3.5  mm.  broad,  2  mm.  thick,  smooth. — C.  villosum, 
Donnell  Smith,  Enum.  PI.  Guat.  iv.  123  (1895),  not  Jacq. — COSTA 
RICA.  Rio  Reventado,  Prov.  Cartago,  altitude  1830  m.,  April,  1888, 
Juan  J.  Cooper,  no.  5889  (hb.  John  Donnell  Smith,  and  lib.  Gray). 
PANAMA.  Without  locality,  Duchassing  (hb.  Gray). 

Citharexylum  Schottii,  sp.  nov. 

Stem  covered  with  a  grayish  bark  and  dotted  with  numerous  len- 
ticels;  branchlets  slightly  4-angled,  striate,  brownish,  glabrous:  leaves 
opposite,  petiolate,  elliptic-lanceolate,  including  the  petiole  4  to  n 
cm.  long,  t  to  3  cm.  broad,  obtuse  or  submucronate-acute,  entire, 
gradually  narrowed  at  the  base  into  a  slender  petiole,  glabrous  on  both 
surfaces  or  very  minutely  hirtellous  above,  usually  reddish-brown 
beneath  in  the  dried  state,  commonly  bearing  two  glands  at  the  junc- 
tion of  petiole  and  blade;  petioles  i  to  2  cm.  long:  inflorescence  a 
terminal  panicle;  bracts  subulate,  equaling  or  slightly  exceeding  the 
short  jointed  pedicels :  flowers  numerous:  calyx  tubular-campanulate, 
during  anthesis  about  2.5  mm.  high,  sinuately  5-dentate,  5-angled  in 
cross  section,  becoming  somewhat  saucer-shaped  in  the  fruiting  stages: 
corolla  about  twice  as  long  as  the  calyx,  externally  glabrous  or  essen- 
tially so,  pubescent  in  the  throat;  tube  exceeding  the  calyx,  obconical; 
lobes  oblong-rotund,  pubescent  on  the  upper  or  inner  surface,  cilio- 
late:  fruit  oblong-obovate,  5  to  7  mm.  long,  drupaceous;  pyrenae 
oblong,  about  5  mm.  long,  the  inner  surface  concave,  the  outer  convex 
and  smooth  or  slightly  furrowed  towards  the  bidentate  base. — C.  quad- 
rangulare,  Millsp.  Field  Columb.  Mus.  Bot.  Ser.  i.  386,  not  Jacq. — 
YUCATAN.  Near  Merida,  28  Ju*ly,  1865,  Dr.  A.  Schott,  no.  575  (hb. 
Field  Mus.)  type;  Izamal,  Dr.  G.  F.  Gaunter,  no.  765  bis  (hb.  Field 
Mus.);  Chichankanab,  Dr.  G.  F.  Gaunter,  no.  1944  (hb.  Field  Mus.). 

The  species  here  proposed  differs  from  C.  quadr  angular e,  Jacq.  in 
its  more  profuse  inflorescence,  smaller  fruit,  etc.  Superficially  C. 
Schottii  resembles  C.  glabrum,  Greenm.,  but  from  this  species  again  it 
differs  in  having  the  spicate  branches  of  the  panicle  erect  or  ascend- 
ing, and  in  having  also  a  proportionately  shorter  corolla-tube,  and  the 
lobes  of  the  corolla  glabrous  or  essentially  so  on  the  outer  surface. 


THE  LIBRARY  OF  THE 

FEB141938 

UNIVERSITY  OF  ILUNOIS 


